1.
J Pediatr
; 121(6): 917-9, 1992 Dec.
Article
in English
| MEDLINE
| ID: mdl-1447656
ABSTRACT
A child with trisomy 21 had altered mental status and hyperammonemia at presentation and was found to have a congenital portosystemic shunt as a result of a congenital abnormality of the portal venous system. Anomalies of the portal venous system leading to portosystemic shunting, although they are infrequent, should be considered in the differential diagnosis of hyperammonemia.